The mainsail will have no battens, so it will not hold its shape as well as
a conventional main, and the leach will be concave, reducing the area.
Also, it will probably be loose-footed, and this further affects the shape,
regardless of how tight the foot is pulled.
--
Jeff Richards

"Guy Schwartz" wrote in message
m...
I would like to know if the performance of the sail is diminished with
main
sail that is furled in the mast versus the conventional type sail?